| 摘要 |
A SEALED COMPRESSOR FOR USE IN A REFRIGERATOR INCLUDES A SEALED HOUSING (1) HAVING AN INTERIOR COMMUNICATED TO THE OUTSIDE OF THE SEALED HOUSING (1) THROUGH A DISCHARGE TUBE (8), A COMPRESSOR ELEMENT (2, 4) ACCOMMODATED WITHIN THE SEALED HOUSING (1), AN ELECTRIC ELEMENT (M) ACCOMMODATED WITHIN THE SEALED HOUSING (1) FOR DRIVING THE COMPRESSOR ELEMENT (2, 4), AND A COUPLING TUBE (9) FLUID-CONNECTING THE COMPRESSOR ELEMENT (2, 4) AND THE DISCHARGE TUBE (8) WITHIN THE SEALED HOUSING (1). TO AVOID A RESONANT MOTION OF THE COUPLING TUBE (9) WHICH WOULD OTHERWISE GENERATE OBNOXIOUS NOISE, AN INVERTER CONTROLLER (12, 13) IS EMPLOYED TO ALLOW THE ELECTRIC ELEMENT (M) TO BE OPERATED AT ONE OF A PLURALITY OF FREQUENCIES OTHER THAN THE RESONANCE FREQUENCY OF THE COUPLING TUBE (9).(FIG 1)
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